Psalm 37:34 (NKJV)
Wait on the LORD, and keep His way. And He shall exalt you to inherit the land; When the wicked are cut off, you shall see it.
Waiting on the LORD is an act of faith; not to wait on Him is foolishness. David admits that the wicked might prosper, but he also affirms that they will not enjoy success forever. Just wait and see.
Also On 95.5 The Lou: